Physician Profile
Unclaimed ProfileAbout CASTER
Based in Springfield, MO, John P Caster, MD is listed in the NPI registry under internal medicine. John graduated from Saint Louis University School of Medicine in 1995.
Summarised automatically from public NPI registry and CMS Medicare data. Not written or reviewed by this provider. Claim this profile to replace it.
Education & Training
Areas of Expertise
Common questions
What kind of doctor is Dr. Caster?
Dr. Caster is an internal medicine in Springfield, MO. This is the primary taxonomy recorded against the NPI in the federal registry, listed there as “INTERNAL MEDICINE”.
NPI registry
What is Dr. Caster's address?
Dr. Caster is listed at 1001 E PRIMROSE ST, Springfield, MO 65807. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How can I make an appointment with Dr. Caster?
The number on file is (417) 875-3000. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is Dr. Caster's NPI number?
Dr. Caster's National Provider Identifier is 1902849854. It is issued by the Centers for Medicare & Medicaid Services and is unique and permanent — it does not change if they move practice.
NPI registry
Where did Dr. Caster train?
Dr. Caster attended Saint Louis University School of Medicine, graduating in 1995. This comes from the CMS National Downloadable File.
CMS public data
How long has Dr. Caster been practising?
Dr. Caster has 31 years experience. Calculated from a graduation year of 1995, reported in the CMS National Downloadable File.
CMS public data
What procedures does Dr. Caster perform?
According to Medicare billing data, Dr. Caster performs procedures including insertion of needle into vein for collection of blood sample; reads or performs imaging such as x-ray of chest, 2 views; provides treatments such as influenza vaccine, inactivated and pneumococcal conjugate vaccine, 20 valent , for intramuscular use, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Has Dr. Caster confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Caster. If this is you, claiming it is free.
Guide.md
Licensing & Certification
Source: NPPES NPI Registry
Contact Information
- (417) 875-3000
- Email not available
Practice Locations
1001 E PRIMROSE ST
Springfield, MO 65807
Procedures Most Often Billed to Medicare
4,774 services · 3,298 patients · 25 distinct codes
| Procedure | Type | Code | Services |
|---|---|---|---|
| Insertion of needle into vein for collection of blood sample | Procedure | 36415 |
568 |
| X-ray of chest, 2 views | Imaging | 71046 |
23 |
| Influenza vaccine, inactivated | Treatment | 90653 |
64 |
| Pneumococcal conjugate vaccine, 20 valent (pcv20), for intramuscular use | Treatment | 90677 |
17 |
| Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report | Treatment | 93000 |
16 |
| Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more | Office visit | 99214 |
622 |
| Blood test, comprehensive group of blood chemicals | Lab test | 80053 |
519 |
| Complete blood cell count (red cells, white blood cell, platelets), automated test and automated differential white blood cell count | Lab test | 85025 |
486 |
| Blood test, lipids (cholesterol and triglycerides) | Lab test | 80061 |
408 |
| Manual urinalysis test with examination using microscope, automated | Lab test | 81001 |
400 |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
Is this your profile?
Verify your identity to control how patients — and AI assistants — describe you.
Claim this profileRelated providers
Connections drawn from the registry and from what providers have told us. A link here is not a referral or an endorsement.
Other internal medicines at this location 4
Same specialty, same street address — most likely the same department or group.
Related specialists at this location 8
Clinically related specialties at the same address — the people this provider most likely works alongside.
Also at this address 4
Providers at the same street address. Each files their own registry entry, so a shared practice often appears under several different names.
More connections — 31 related providers in 4 groups
Other internal medicines in Springfield 7
Same specialty, same city.
Trained at Saint Louis University School of Medicine 8
Other providers in the same specialty who trained at the same institution.
Class of 1995 at Saint Louis University School of Medicine 8
Providers who graduated from the same medical school in the same year.
Also performs Insertion of needle into vein for collection of blood sample 8
Providers in MO who bill this service to Medicare most often.
Provider data sourced from the NPPES NPI Registry and CMS public datasets. Information is provided for reference and is not medical advice.